// const http = require('http');
const https = require('https');
const SQLHelper = require('./SQLHelper')

// let SQLHelper = require('./SQLHelper');
//雪花算法生成id
const snowflake = require('./snowflake');
const { formatTime } = require('./util')

module.exports = function (app) {
  //登录拦截中间件
  function loginRouter(req, res, next) {
    // console.log(req.method);
    if (req.method.toUpperCase() == 'OPTIONS') {
      next()
      return;
    }
    let token = req.headers.token
    if (token) {
      SQLHelper(`select * from session where id = ${token} and state = 1`).then(ret => {
        if (ret.length) {
          let session = ret[0]
          //登录时间2h
          if (new Date().getTime() - session.createTime < 2 * 60 * 60 * 1000) {
            req.session = {
              userId: session.userId,
              userName: session.userName
            }
            next()
          } else {
            res.status(400).send({ errorMsg: '登录超时' })
          }
        } else {
          res.status(400).send({ errorMsg: '当前用户未登录' })
        }
      })
    } else {
      res.status(400).send({ errorMsg: '缺少token,请先进行登录' })
    }
  }



  //让初登录以外的所有小程序接口都先验证登录
  app.use('/admin', loginRouter)

  // 管理后台登录
  app.post('/login', (req, res) => {
    let userName = req.body.userName
    let passWord = req.body.passWord
    if (userName && passWord) {
      SQLHelper(`
    select * from user where userName = '${userName}'
    `).then(users => {
        if (users.length) {//正常登录逻辑
          let user = users[0]
          if (passWord == user.passWord) {
            // let user = req.user
            let token = snowflake()
            //缓存tokens到session表
            SQLHelper(`
          INSERT INTO session(id,userId,userName,inTime,createTime,platform)
          VALUES(${token},'${user._id}','${user.nickName}','${formatTime(new Date())}',${new Date().getTime()},'admin')
          `).then(ret => {
              res.send({
                nickName: user.nickName,
                token,
                avatarUrl: user.photo,
                _id: user._id
              })
            })
          } else {
            res.send({ errorMsg: '密码错误' })
          }
        } else {
          res.send({ errorMsg: '当前用户不存在' })
        }
      })
    } else {
      res.send({ errorMsg: '用户名和密码不能为空' })
    }
  })
  app.get('/admin/logout', (req, res) => {
    SQLHelper(`update session set outTime = '${formatTime(new Date())}',state = 0 where id = '${req.headers.token}'`).then(ret => {
      res.send({ msg: '退出登录成功' })
    })
  })

  //修改密码
  app.post('/admin/changePassWord', (req, res) => {
    let userId = req.session.userId
    let passWord = req.body.passWord
    let newpassWord = req.body.newpassWord
    if (passWord && newpassWord) {
      //通过userId和密码查询用户
      SQLHelper(`select passWord from user where _id  = ${userId}`).then(users => {
        // res.send({msg:'退出登录成功'})
        let user = users[0]
        //比对原密码
        if (user.passWord == passWord) {
          //修改密码
          SQLHelper(`update user set passWord = '${newpassWord}' where _id = ${userId}`).then(ret => {
            res.send({ msg: '修改密码成功！' })
          })
        } else {
          res.send({ errorMsg: '原密码错误' })
        }
      })
    } else {
      res.send({ errorMsg: '原密码和新密码不能为空' })
    }
  })

  //首页管理

  //分页获取首页项目列表
  //pageSize 每页大小 默认10
  //pageNum 当前页 默认1
  //type 类型 非必填 banner：轮播图 category：分类 recommend：为您推荐 不填搜索全部
  app.get('/admin/index', (req, res) => {
    let pageSize = req.query.pageSize || 10
    let pageNum = req.query.pageNum || 1
    let offset = (pageNum - 1) * pageSize
    let title = req.query.title
    let type = req.query.type
    let whereSql = 'from index_region where state = 1'
    //按类型查询
    if (type) whereSql += ` and type = '${type}'`
    ///按标题关键字搜索
    if (title) whereSql += ` and title like "%${title}%"`
    SQLHelper(`
    select count(*) as total ${whereSql};
    select * ${whereSql} 
    limit ${pageSize} offset ${offset}
    `).then(ret => {
      res.send({
        total: ret[0][0].total,
        rows: ret[1]
      })
    })
  })


  //新增首页项目
  //img 图片地址 必填
  //url 跳转地址 非必填
  //title 标题 轮播图不填,其他必填
  //status 是否启用 非必填 1：启用 ； 0：停用
  //type 类型 非必填 banner(默认)：轮播图 category：分类 recommend：为您推荐
  app.post('/admin/index', (req, res) => {
    let img = req.body.img, url = req.body.url, status = req.body.status
    let type = req.body.type || 'banner', title = req.body.title
    if (type != 'banner' && !title) {
      res.send({ errorMsg: '标题不能为空' })
      return
    }
    if (status != 1) status = 0 //默认启用
    if (img) {
      let createTime = new Date().getTime()
      SQLHelper(`
    INSERT INTO index_region(title,img,url,status,state,createTime,unitId,type)
    VALUES('${title}','${img}','${url}','${status}',1,${createTime},'juzao','${type}')
    `).then(ret => {
        res.send(ret.insertId ? { _id: ret.insertId } : { errorMsg: '新增数据失败' })
      })
    } else {
      res.send({ errorMsg: '传入参数错误' })
    }
  })


  //修改首页项目
  //indexId 主码_id 必填
  app.put('/admin/index', (req, res) => {
    if (req.body.indexId) {
      let updateTime = new Date().getTime()
      let updateKey = ['img', 'url', 'title', 'status']
      let updateValues = [`updateTime=${updateTime}`]
      for (let i = 0; i < updateKey.length; i++) {
        let key = updateKey[i], value = req.body[key]
        if (value !== undefined) updateValues.push(`${key}='${value}'`)///判断哪些需要修改
      }
      SQLHelper(`UPDATE index_region set ${updateValues.join(',')} WHERE _id = ${req.body.indexId}`).then(ret => {
        res.send(ret)
      })
    } else {
      res.send({ errorMsg: '传入参数错误' })
    }
  })


  //删除首页项目
  //indexId 用户ID 必填
  app.delete('/admin/index', (req, res) => {
    let indexId = req.query.indexId
    if (indexId) {
      SQLHelper(`
      UPDATE index_region
      set state = 0
      WHERE _id = ${indexId}
      `).then(ret => {
        res.send(ret)
      })
    } else {
      res.send({ errorMsg: '传入参数错误' })
    }
  })

  //品牌管理

  //分页获取品牌
  //pageSize 每页大小 默认10
  //pageNum 当前页 默认1
  app.get('/admin/List/brands', (req, res) => {
    let pageSize = req.query.pageSize || 10
    let pageNum = req.query.pageNum || 1
    let offset = (pageNum - 1) * pageSize
    let name = req.query.name
    let whereSql = 'from brand where state = 1'
    ///按标题关键字搜索
    if (name) whereSql += ` and name like "%${name}%"`
    SQLHelper(`
    select count(*) as total ${whereSql};
    select * ${whereSql} 
    limit ${pageSize} offset ${offset}
    `).then(ret => {
      res.send({
        total: ret[0][0].total,
        rows: ret[1]
      })
    })
  })

  //新增品牌
  //name 品牌标题
  //img 图片 必填
  app.post('/admin/List/brands', (req, res) => {
    let img = req.body.img
    let name = req.body.name
    if (img) {
      let createTime = new Date().getTime()
      SQLHelper(`
    INSERT INTO product(name,img,state,createTime,unitId)
    VALUES('${name}','${img}',1,${createTime},'juzao')
    `).then(ret => {
        res.send(ret.insertId ? { _id: ret.insertId } : { errorMsg: '新增数据失败' })
      })
    } else {
      res.send({ errorMsg: '传入参数错误' })
    }
  })


  //修改品牌内容
  //indexId 主码_id 必填
  app.put('/admin/List/brands', (req, res) => {
    if (req.body.indexId) {
      let updateTime = new Date().getTime()
      let updateKey = ['img', 'url', 'name']
      let updateValues = [`updateTime=${updateTime}`]
      for (let i = 0; i < updateKey.length; i++) {
        let key = updateKey[i], value = req.body[key]
        if (value !== undefined) updateValues.push(`${key}='${value}'`)///判断哪些需要修改
      }
      SQLHelper(`UPDATE brand set ${updateValues.join(',')} WHERE _id = ${req.body.indexId}`).then(ret => {
        res.send(ret)
      })
    } else {
      res.send({ errorMsg: '传入参数错误' })
    }
  })


  //删除品牌项目
  //indexId 用户ID 必填
  app.delete('/admin/List/brands', (req, res) => {
    let indexId = req.query.indexId
    if (indexId) {
      SQLHelper(`
      UPDATE brand
      set state = 0
      WHERE _id = ${indexId}
      `).then(ret => {
        res.send(ret)
      })
    } else {
      res.send({ errorMsg: '传入参数错误' })
    }
  })

  //商品管理

  //分页获取首页项目列表
  //pageSize 每页大小 默认10
  //pageNum 当前页 默认1
  app.get('/admin/product', (req, res) => {
    let pageSize = req.query.pageSize || 10
    let pageNum = req.query.pageNum || 1
    let offset = (pageNum - 1) * pageSize
    let name = req.query.name
    let whereSql = 'from product where state = 1'
    ///按标题关键字搜索
    if (name) whereSql += ` and name like "%${name}%"`
    SQLHelper(`
    select count(*) as total ${whereSql};
    select * ${whereSql} 
    limit ${pageSize} offset ${offset}
    `).then(ret => {
      res.send({
        total: ret[0][0].total,
        rows: ret[1]
      })
    })
  })


  //新增首页项目
  //name 商品名称
  //brandId 品牌
  //imgs 图片地址 必填
  //sales 销量
  //description 详情
  //status 是否启用 非必填 1：启用 ； 0：停用
  app.post('/admin/product', (req, res) => {
    let name = req.body.name,brandId = req.body.brandId, imgs = req.body.imgs
    let sales = req.body.sales,description = req.body.description, status = req.body.status
    if (status != 1) status = 0 //默认启用
    if (imgs) {
      let createTime = new Date().getTime()
      SQLHelper(`
    INSERT INTO product(name,brandId,imgs,sales,description,status,state,createTime,unitId)
    VALUES('${name}','${brandId}','${imgs}','${sales}','${description}','${status}',1,${createTime},'juzao')
    `).then(ret => {
        res.send(ret.insertId ? { _id: ret.insertId } : { errorMsg: '新增数据失败' })
      })
    } else {
      res.send({ errorMsg: '传入参数错误' })
    }
  })


  //修改首页项目
  //indexId 主码_id 必填
  app.put('/admin/product', (req, res) => {
    if (req.body.indexId) {
      let updateTime = new Date().getTime()
      let updateKey = ['name','brandId','imgs', 'sales','description', 'status']
      let updateValues = [`updateTime=${updateTime}`]
      for (let i = 0; i < updateKey.length; i++) {
        let key = updateKey[i], value = req.body[key]
        if (value !== undefined) updateValues.push(`${key}='${value}'`)///判断哪些需要修改
      }
      SQLHelper(`UPDATE product set ${updateValues.join(',')} WHERE _id = ${req.body.indexId}`).then(ret => {
        res.send(ret)
      })
    } else {
      res.send({ errorMsg: '传入参数错误' })
    }
  })


  //删除首页项目
  //indexId 用户ID 必填
  app.delete('/admin/product', (req, res) => {
    let indexId = req.query.indexId
    if (indexId) {
      SQLHelper(`
      UPDATE product
      set state = 0
      WHERE _id = ${indexId}
      `).then(ret => {
        res.send(ret)
      })
    } else {
      res.send({ errorMsg: '传入参数错误' })
    }
  })

  //单品管理

  //分页获取单品项目列表
  //pageSize 每页大小 默认10
  //pageNum 当前页 默认1
  app.get('/admin/singleproduct', (req, res) => {
    let pageSize = req.query.pageSize || 10
    let pageNum = req.query.pageNum || 1
    let offset = (pageNum - 1) * pageSize
    let skuId = req.query.skuId
    let whereSql = 'from sku where state = 1'
    ///按标题关键字搜索
    if (skuId) whereSql += ` and skuId like "%${skuId}%"`
    SQLHelper(`
    select count(*) as total ${whereSql};
    select * ${whereSql} 
    limit ${pageSize} offset ${offset}
    `).then(ret => {
      res.send({
        total: ret[0][0].total,
        rows: ret[1]
      })
    })
  })


  //新增单品项目
  //skuId sku编码
  //salePrice 售价
  //originalPrice 原价
  //productName 商品名称
  //imgs 图片
  //props 属性
  //skuSpecification 直连供应商
  app.post('/admin/singleproduct', (req, res) => {
    let skuId = req.body.skuId,salePrice = req.body.salePrice, originalPrice = req.body.originalPrice
    let productName = req.body.productName,imgs = req.body.imgs, props = req.body.props
    if (imgs) {
      let createTime = new Date().getTime()
      SQLHelper(`
    INSERT INTO sku(skuId,salePrice,originalPrice,productName,imgs,props,state,createTime,unitId)
    VALUES('${skuId}','${salePrice}','${originalPrice}','${productName}','${imgs}','${props}',1,${createTime},'juzao')
    `).then(ret => {
        res.send(ret.insertId ? { _id: ret.insertId } : { errorMsg: '新增数据失败' })
      })
    } else {
      res.send({ errorMsg: '传入参数错误' })
    }
  })


  //修改单品项目
  //indexId 主码_id 必填
  app.put('/admin/singleproduct', (req, res) => {
    if (req.body.indexId) {
      let updateTime = new Date().getTime()
      let updateKey = ['skuId','salePrice','originalPrice', 'productName','imgs', 'props']
      let updateValues = [`updateTime=${updateTime}`]
      for (let i = 0; i < updateKey.length; i++) {
        let key = updateKey[i], value = req.body[key]
        if (value !== undefined) updateValues.push(`${key}='${value}'`)///判断哪些需要修改
      }
      SQLHelper(`UPDATE sku set ${updateValues.join(',')} WHERE _id = ${req.body.indexId}`).then(ret => {
        res.send(ret)
      })
    } else {
      res.send({ errorMsg: '传入参数错误' })
    }
  })


  //删除单品
  //indexId 用户ID 必填
  app.delete('/admin/singleproduct', (req, res) => {
    let indexId = req.query.indexId
    if (indexId) {
      SQLHelper(`
      UPDATE sku
      set state = 0
      WHERE _id = ${indexId}
      `).then(ret => {
        res.send(ret)
      })
    } else {
      res.send({ errorMsg: '传入参数错误' })
    }
  })


  //新闻管理

  //分页获取新闻项目列表
  //pageSize 每页大小 默认10
  //pageNum 当前页 默认1
  app.get('/admin/news', (req, res) => {
    let pageSize = req.query.pageSize || 10
    let pageNum = req.query.pageNum || 1
    let offset = (pageNum - 1) * pageSize
    let title = req.query.title
    let whereSql = 'from article where state = 1'
    ///按标题关键字搜索
    if (title) whereSql += ` and title like "%${title}%"`
    SQLHelper(`
    select count(*) as total ${whereSql};
    select * ${whereSql} 
    limit ${pageSize} offset ${offset}
    `).then(ret => {
      res.send({
        total: ret[0][0].total,
        rows: ret[1]
      })
    })
  })


  //新增新闻项目
  //img 图片地址 必填
  //title 标题
  //digest 摘要
  //time 时间
  //hot 热点
  //status 是否启用 非必填 1：启用 ； 0：停用
  app.post('/admin/news', (req, res) => {
    let img = req.body.img, title = req.body.title, digest = req.body.digest
    let time = req.body.time, hot = req.body.hot,status = req.body.status
    if (status != 1) status = 0 //默认启用
    if (img) {
      let createTime = new Date().getTime()
      SQLHelper(`
    INSERT INTO article(title,img,digest,time,hot,status,state,createTime,unitId)
    VALUES('${title}','${img}','${digest}','${time}','${hot}','${status}',1,${createTime},'juzao')
    `).then(ret => {
        res.send(ret.insertId ? { _id: ret.insertId } : { errorMsg: '新增数据失败' })
      })
    } else {
      res.send({ errorMsg: '传入参数错误' })
    }
  })


  //修改新闻项目
  //indexId 主码_id 必填
  app.put('/admin/news', (req, res) => {
    if (req.body.indexId) {
      let updateTime = new Date().getTime()
      let updateKey = ['img', 'digest', 'title','time','hot','status']
      let updateValues = [`updateTime=${updateTime}`]
      for (let i = 0; i < updateKey.length; i++) {
        let key = updateKey[i], value = req.body[key]
        if (value !== undefined) updateValues.push(`${key}='${value}'`)///判断哪些需要修改
      }
      SQLHelper(`UPDATE article set ${updateValues.join(',')} WHERE _id = ${req.body.indexId}`).then(ret => {
        res.send(ret)
      })
    } else {
      res.send({ errorMsg: '传入参数错误' })
    }
  })


  //删除首页项目
  //indexId 用户ID 必填
  app.delete('/admin/news', (req, res) => {
    let indexId = req.query.indexId
    if (indexId) {
      SQLHelper(`
      UPDATE article
      set state = 0
      WHERE _id = ${indexId}
      `).then(ret => {
        res.send(ret)
      })
    } else {
      res.send({ errorMsg: '传入参数错误' })
    }
  })
}